Hi I checked your thread about 2.6.11-5 on 8xx @ http://ozlabs.org/pipermail/linuxppc-embedded/2005-March/017468.html.
I am working on 860 and I tried both 2.6.11-5 and 2.6.11-7. I get struck up exactly at same error as you mentiond . i.e Linux/PPC load: rw root=/dev/ram0 Uncompressing Linux...done. Now booting the kernel .....nothing after this.. I just want to cross check my config file. Can you please send me your config file. Have a nice day. harsha